diff --git a/src/plugins/plugin_merge_req_mercurial.py b/src/plugins/plugin_merge_req_mercurial.py
index f2a9bc14..2cfa0158 100755
--- a/src/plugins/plugin_merge_req_mercurial.py
+++ b/src/plugins/plugin_merge_req_mercurial.py
@@ -131,7 +131,7 @@ class MercurialHandler(object):
         parsed_data = self.parse(data)
         try:
             parsed_name = parsed_data[0][u'commit_msg'].split(u'\n')[0]
-            parsed_name = re.sub(ur'[^\w -.]', u'', parsed_name, flags=re.UNICODE)[:20]
+            parsed_name = re.sub(ur'[^\w -.]', u'', parsed_name, flags=re.UNICODE)[:40]
         except Exception:
             parsed_name = u''
         name = u'mr_{item_id}_{parsed_name}'.format(item_id=item_id, parsed_name=parsed_name)